File virt._get_domain-don-t-raise-an-exception-if-th... of Package salt

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File virt._get_domain-don-t-raise-an-exception-if-there-i.patch of Package salt (Revision 44ab191650dd3cc6e3937f33dcb55cdd)

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From ef376e2d9a8360367a9a214d8f50d56889f3a664 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Bosdonnat?= <cbosdonnat@suse.com>
Date: Tue, 17 Mar 2020 11:01:48 +0100
Subject: [PATCH] virt._get_domain: don't raise an exception if there
 is no VM

Raising an exception if there is no VM in _get_domain makes sense if
looking for some VMs, but not when listing all VMs.
---
 salt/modules/virt.py            |  2 +-
 tests/unit/modules/test_virt.py | 41 +++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/salt/modules/virt.py b/salt/modules/virt.py
index f0820e882524e1ebaae335e0a72940d6ff85c1b2..c8e046a47ae76b50651871fe1d149590d5d1e930 100644
--- a/salt/modules/virt.py
+++ b/salt/modules/virt.py
@@ -268,7 +268,7 @@ def _get_domain(conn, *vms, **kwargs):
         for id_ in conn.listDefinedDomains():
             all_vms.append(id_)
 
-    if not all_vms:
+    if vms and not all_vms:
         raise CommandExecutionError('No virtual machines found.')
 
     if vms:
diff --git a/tests/unit/modules/test_virt.py b/tests/unit/modules/test_virt.py
index 8690154662f41c8d9699fba62fcda6d83208a7d7..3e9bd5ef49dfddc019f9b4da1b505d81018e7eed 100644
--- a/tests/unit/modules/test_virt.py
+++ b/tests/unit/modules/test_virt.py
@@ -3639,3 +3639,44 @@ class VirtTestCase(TestCase, LoaderModuleMockMixin):
                 }
             },
             [backend for backend in backends if backend['name'] == 'netfs'][0]['options'])
+
+    def test_get_domain(self):
+        '''
+        Test the virt._get_domain function
+        '''
+        # Tests with no VM
+        self.mock_conn.listDomainsID.return_value = []
+        self.mock_conn.listDefinedDomains.return_value = []
+        self.assertEqual([], virt._get_domain(self.mock_conn))
+        self.assertRaisesRegex(CommandExecutionError, 'No virtual machines found.',
+                               virt._get_domain, self.mock_conn, 'vm2')
+
+        # Test with active and inactive VMs
+        self.mock_conn.listDomainsID.return_value = [1]
+
+        def create_mock_vm(idx):
+            mock_vm = MagicMock()
+            mock_vm.name.return_value = 'vm{0}'.format(idx)
+            return mock_vm
+
+        mock_vms = [create_mock_vm(idx) for idx in range(3)]
+        self.mock_conn.lookupByID.return_value = mock_vms[0]
+        self.mock_conn.listDefinedDomains.return_value = ['vm1', 'vm2']
+
+        self.mock_conn.lookupByName.side_effect = mock_vms
+        self.assertEqual(mock_vms, virt._get_domain(self.mock_conn))
+
+        self.mock_conn.lookupByName.side_effect = None
+        self.mock_conn.lookupByName.return_value = mock_vms[0]
+        self.assertEqual(mock_vms[0], virt._get_domain(self.mock_conn, inactive=False))
+
+        self.mock_conn.lookupByName.return_value = None
+        self.mock_conn.lookupByName.side_effect = [mock_vms[1], mock_vms[2]]
+        self.assertEqual([mock_vms[1], mock_vms[2]], virt._get_domain(self.mock_conn, active=False))
+
+        self.mock_conn.reset_mock()
+        self.mock_conn.lookupByName.return_value = None
+        self.mock_conn.lookupByName.side_effect = [mock_vms[1], mock_vms[2]]
+        self.assertEqual([mock_vms[1], mock_vms[2]], virt._get_domain(self.mock_conn, 'vm1', 'vm2'))
+        self.assertRaisesRegex(CommandExecutionError, 'The VM "vm2" is not present',
+                               virt._get_domain, self.mock_conn, 'vm2', inactive=False)
-- 
2.23.0

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